Nissan's misconduct was first brought into light following an on-site inspection by the Ministry of Land, Infrastructure, Transport and Tourism on September 18.
Checks by uncertified inspectors continued even after Nissan had said it had strengthened control of its inspection processes when the issue first came to light late last month. This follows a statement from Nissan in early October, where it announced a recall of another 1.2 million Japanese-market cars due to faulty inspections done in the past three years.
As a result, employees who were not internally registered as final vehicle inspectors performed the checks, causing the debacle, Nissan said. "Nissan took corrective measures at Japanese production plants by September 20 to address the issue".
Nissan Motor Co. will suspend Japanese production of vehicles for local sale, marking a deepening of the carmaker's quality-inspection debacle and delivering another blow to the nation's scandal-plagued manufacturing industry.
Despite Nissan's corrective measures, the investigative team found that in three of Nissan's production plants, unauthorised technicians conducted certain parts of the final inspection process without the proper qualifications required.
The automaker's CEO Hiroto Saikawa told a press conference that final inspections at four of its six domestic plants were still conducted by uncertified personnel even after the company had apologized and made a decision to recall some 1.2 million vehicles over the malpractice.
'Buffy' Star Nicholas Brendon In Yet Another Hotel Arrest
USA Today notes that Brendon is scheduled to appear at a hearing in Larson Justice Center in Indio, Calif. on November 28, 2017. A month after that, he was arrested in Tallahassee, Florida for causing about $1,000 in damage to another hotel room.
Nissan has already confirmed to Motor1 that vehicles produced in Japan for export markets aren't involved and won't be subject of the recall.
As a preventive measure, Nissan will also increase the number of inspectors at its Japanese factories.
Kobe Steel, Japan's third-biggest steelmaker, admitted this month it had falsified specifications on the strength and durability of aluminium, copper and steel products, misconduct that may have stretched back more than 10 years.
At 1415 GMT, shares in Nissan's alliance partner Renault were down 2.3 percent at 84.36 euros.
The automaker said Thursday that it had halted production of vehicles for the Japanese market after discovering that inspections were not carried out properly at several factories.